Superan; When you are mad at your girl for not having sex with you. So when she falls asleep you masturbate and cum on her back. After that, stick the bedsheet on to her back and when she wakes up it's stuck to the cum and she has a cape like Superman!!!

"Yo, dawg, Last night my bitch was being frothy so I have her a Superman"

The Urban Dictionary T-Shirt

Superman is a fictional character and the staple superhero of DC Comics. He first appeared in Action Comics #1 in 1938 and is considered the first character to embody the particular combination of traits that characterize the modern superhero.

The comic book character, created by Toronto-born Joe Shuster and Cleveland-born Jerry Siegel in 1932 and sold to Detective Comics, Inc (today DC Comics) in 1938, subsequently appeared in various radio serials, television programs, films, newspaper strips, and video games. As was written in the first edition of Action Comics #1 (June, 1938), Superman is born on the planet Krypton and as an infant is rocketed to Earth by his scientist father, moments before Krypton explodes. The rocket lands on Earth, where amiable couple the Kents find the baby and adopt him. As he grows, he discovers that he possesses powers far beyond those of mortal men and women and resolves to use them to help others. When not fighting the forces of evil as Superman, he lives among humanity as "mild-mannered" Clark Kent, a reporter for the Daily Star (later changed to the Daily Planet). Clark works alongside reporter Lois Lane, with whom he is romantically involved. In current comics continuity, they are married; however, the character has several other relationships throughout his years in comics. Today, the character's adventures are published in a number of comic books.